The 2.5-liter Nissan QR25DD engine, which was manufactured in a Japanese factory between 2001 and 2007, is primarily found on a single Primera model in both a sedan and a station wagon. This power unit had a reputation for being extremely erratic and picky about fuel quality.
Internal combustion engines QR20DE, QR20DD, QR25DE, and QR25DER are also part of the QR family.
The engine was mounted on:
- Nissan Primera 3 (P12) in 2001 – 2007.
Specifications
| Production years | 2001-2007 |
| Displacement, cc | 2488 |
| Fuel system | NEO-Di direct injection |
| Power output, hp | 170 |
| Torque output, Nm | 245 |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 89 |
| Piston stroke, mm | 100 |
| Compression ratio | 10.7 |
| Features | EGR |
| Hydraulic lifters | no |
| Timing drive | two chains |
| Phase regulator | inlet only |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 5.1 |
| Fuel type | petrol |
| Euro standards | EURO 4 |
| Fuel consumption, L/100 km (for Nissan Primera 2006) — city — highway — combined |
11.9 7.6 8.7 |
| Engine lifespan, km | ~220 000 |
| Weight, kg | 125 |
Disadvantages of the QR25DD engine
The majority of complaints about the quick contamination of the injectors or the failure of the high pressure fuel pump;
The engine dislikes low temperatures and can cause problems in cold winters; there are cases of catalyst destruction and timing chains stretching up to 100,000 kilometers; rings lie down and the oil burns due to the accelerated carbon formation; minor problems include thermostat glitches and leaks from under the valve cover.